List of top Questions asked in UP JEE Polytechnic

If velocity of light in air is \(3 \times 10^8\) m/s and that in water is \(2 \times 10^8\) m/s, then what would be the critical angle?
Two springs with spring constants \(K_1 = 1500 \, \text{N/m}\) and \(K_2 = 3000 \, \text{N/m}\) are stretched by the same force. The ratio of potential energy stored in spring will be
Soils of Western Rajasthan have a high content of
How many electrons an atom have in M shell whose atomic number is 19?
A cycle tyre bursts suddenly. This represents an
A man can see upto 5 metre clearly. To see clear upto 10 m, the focal length of lens will be
The volume of a gas at 1140 mm of Hg pressure and 546°C temperature is 150 litre. The volume of gas at S.T.P. will be
Which of the following is an insulator?
Length of a rod increases 0.2% on increasing the temperature by 100°C. The value of coefficient of linear expansion of material of rod is
The metal that cannot displace hydrogen from dilute hydrochloric acid is
Little leaf disease of mango and brinjal is caused due to the deficiency of
pH value of 0.0001 M HCl solution is
A force is applied on a 6 gm mass (at rest) for 20 seconds. After no force is exerted on it and after travelling distance of 50 cm in 5 seconds, mass stops. The amount of force in Newton will be
Work done during the expansion of a gas from a volume of \(4 \, \text{dm}^3\) to \(6 \, \text{dm}^3\) against a constant external pressure of 3 atm is (1 L atm = 101.32 J)
IUPAC name of
H\(_3\)C - C = CH - CH\(_2\) - CH\(_3\) Cl
Phenol with dilute HNO\(_3\) gives
When \(10^{14}\) electrons are removed from a neutral metal sphere, the charge on the sphere becomes
The value of one Faraday charge is
A particle of charge ‘q’, mass ‘m’ and velocity ‘v’, enters perpendicular to a magnetic field ‘B’, force on particle will be
The correct order of Radii is
In a 10 cm long horizontal wire, 5 Amp current is flowing. The mass of the wire is \(3 \times 10^{-3}\) kg/m. What will be the field to keep wire stable?
In the following figure, the equivalent resistance between ‘A’ and ‘B’ will be
equivalent resistance between ‘A’ and ‘B’
Potassium chloride contains K-(Approximate)
“Pusha RH-10” is a hybrid variety of
Which physical quantity is constant for a satellite in orbit?